EP3495166A1 - Pneumatiques de véhicule comportant un code lisible de manière optoélectronique - Google Patents

Pneumatiques de véhicule comportant un code lisible de manière optoélectronique Download PDF

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Publication number
EP3495166A1
EP3495166A1 EP18196168.1A EP18196168A EP3495166A1 EP 3495166 A1 EP3495166 A1 EP 3495166A1 EP 18196168 A EP18196168 A EP 18196168A EP 3495166 A1 EP3495166 A1 EP 3495166A1
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EP
European Patent Office
Prior art keywords
relief
tread
vehicle tire
opto
readable code
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18196168.1A
Other languages
German (de)
English (en)
Other versions
EP3495166B1 (fr
Inventor
Ulrich Behr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Reifen Deutschland GmbH
Original Assignee
Continental Reifen Deutschland GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of EP3495166A1 publication Critical patent/EP3495166A1/fr
Application granted granted Critical
Publication of EP3495166B1 publication Critical patent/EP3495166B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/032—Patterns comprising isolated recesses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0606—Vulcanising moulds not integral with vulcanising presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C19/00—Tyre parts or constructions not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0606—Vulcanising moulds not integral with vulcanising presses
    • B29D2030/0607—Constructional features of the moulds
    • B29D2030/0612—Means for forming recesses or protrusions in the tyres, e.g. grooves or ribs, to create the tread or sidewalls patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0633—After-treatment specially adapted for vulcanising tyres
    • B29D2030/0634—Measuring, calculating, correcting tyre uniformity, e.g. correcting RFV
    • B29D2030/0638—Correcting by removing material, e.g. by grinding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/52—Unvulcanised treads, e.g. on used tyres; Retreading
    • B29D30/68—Cutting profiles into the treads of tyres
    • B29D2030/685—Cutting profiles into the treads of tyres before tread vulcanization
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/72—Side-walls
    • B29D2030/726—Decorating or marking the sidewalls before tyre vulcanization

Definitions

  • the invention relates to a vehicle tire having an outer surface, the outer surface having an opto-electronically readable code, which is formed by a relief of a matrix arrangement of a plurality of first surface regions having a depth profile and a plurality of second surface regions comprising a depth profile the first surface areas differ from the second surface areas in their depth profile in such a way that they are made opto-electronically distinguishable, and wherein the relief has a relief depth of a maximum of 0.5 mm.
  • an opto-electronically readable code information or data can be displayed on a product in coded form in a simple manner.
  • Examples include a product number represented by a bar code or an Internet address (Uniform Resource Locator) represented by means of a QR code, which refers, for example, to a website of the product manufacturer.
  • QR code Uniform Resource Locator
  • a vehicle tire with an opto-electronically readable code on the tire sidewall wherein the opto-electronically readable code is formed as a relief of the sidewall surface.
  • the relief has a multiplicity of first surface areas and a multiplicity of second surface areas which, when the light is incident on the side wall, differ in the light reflected by them and are thereby opto-electronically distinguishable by an optoelectronic reader.
  • such a relief has a certain relief depth. Since the side wall is a relatively thin component of the vehicle tire and also the vehicle tire in the region of the side wall has a low material thickness, such a relief can lead to a weakening of the tire in the region of the side wall.
  • a “relief” is a surface area having elevations and / or depressions relative to the base area of the surface area.
  • the base surface can run parallel to an envelope surface of surface areas adjacent to the relief.
  • the elevations and / or depressions form the "depth profile" of the relief.
  • a “Relief depth” of a relief is the maximum height difference of the relief, measured perpendicular to the base of the relief.
  • the object of the present invention is to provide a vehicle tire with an opto-electronically readable code, wherein the vehicle tire has an improved durability.
  • the outer surface having the opto-electronically readable code is a surface of the tread.
  • the tread of the vehicle tire thus has on its surface forming the outer surface of the vehicle tire the relief forming the opto-electronically readable code. It has been found that the durability of the tread is many times more robust compared to a local reduction of its material thickness, as it is produced by such a relief of a maximum relief depth of 0.5 mm, as a side wall a pneumatic vehicle tire. The durability of a vehicle tire is hardly affected by such a reduction in the material thickness of its tread. The durability of a pneumatic vehicle tire is many times more robust against such a reduction in the material thickness of its tread as against a corresponding reduction in the thickness of its sidewall.
  • the material thickness of the tread is only slightly reduced while at the same time providing a good optoelectronic readability of the opto-electronically readable code with sufficient relief depth.
  • the tread is solid.
  • a belt is provided with reinforcing members, which additionally gives the tire stability against a local reduction in material thickness.
  • a vehicle tire with an opto-electronically readable code is provided, wherein the vehicle tire has a significantly improved durability.
  • an opto-electronically readable code arranged on the tread has the advantage that the code can also be read even if the tread of the vehicle tire is primarily visible. This is e.g. in stacked tires, such as e.g. in a workshop or at the factory, or in upright tires, e.g. at a tire dealer in the sales exhibition, the case.
  • the "outer surface" of the pneumatic vehicle tire is the surface of the pneumatic vehicle tire, which limits a wheel consisting of a rim and the vehicle tire mounted on the rim to the outside. These include, among other things, the tread and the bottom and edges of tread grooves.
  • the "tread” is a surface of the tread that co-shapes the outer surface of the vehicle tire.
  • the tread comes wholly or partially in driving with the road in touch.
  • the tread is thus one of the radially outermost Surface areas of the vehicle tire. Recesses or depressions of the surface of the tire, for example by tread grooves do not contribute to the tread.
  • the tread is arranged in particular axially within the belt edges
  • a “code” can be understood here as meaning the representations of data in symbols.
  • An “opto-electronically readable” code can be detected by an optoelectronic reader and decoded and interpreted by appropriate software.
  • the opto-electronically readable code of the present invention is formed by a relief of a matrix array having a plurality of first surface areas comprising a depth profile and a plurality of second surface areas having a depth profile, i. that the physical representation of the code is formed by the relief.
  • a "multiplicity" equals at least five.
  • a “matrix array” is a one-dimensional array in a row or a two-dimensional array in rows and columns.
  • the first surface areas differ in their depth profile from the second surface areas in such a way that they are opto-electronically distinguishable.
  • the differences in its depth profile when light falls from a light source onto the relief, the light reflected by a first surface region differs in intensity from the light reflected from a second surface region.
  • the intensity and / or the difference in intensity of the light reflected by the first surface regions and the second surface regions can be detected spatially resolved by an optoelectronic reader and differentiated.
  • the surface areas are thus spatially resolved detectable and distinguishable, whereby the code is opto-electronically readable.
  • the optoelectronic readability can be given in a solid angle, in several solid angles or in all solid angles into which light is reflected.
  • the “optoelectronic reader” comprises at least one detector for light.
  • the optoelectronic reader may be a reader which, such as a bar code scanner, actively emits light and the light reflected back into the detector detected. It may also be an optoelectronic reader which, such as a smartphone equipped with a photo optic and a suitable software, detects light which is reflected from the environment from the surface of the relief into the detector.
  • An external or an interpretation software integrated in the optoelectronic reader decodes and interprets the information represented by the optoelectrically readable code represented as a relief.
  • the detection mechanism and interpretation software can be tailored to the requirements of opto-electronically readable code embedded in the tread surface.
  • light electromagnetic radiation that is suitable for detection by an optoelectronic reader.
  • electromagnetic radiation with a wavelength of 380 nm to 780 nm is to be understood here.
  • the light incident on the relief may be light or ambient light emitted by the optoelectronic reader, such as direct or diffused sunlight, or direct or diffuse artificial illumination by a light source such as a room light or a lantern. In the course of the invention is assumed that a sufficient light source.
  • the relief is formed from the same material as the tread surrounding the relief.
  • the use of a different material to the tread material is therefore not necessary.
  • the material is thus tailored to the stress in the manufacture and / or use of the tread. As a result, a simple production and a long shelf life of the code is possible.
  • the type of code is any code that can be represented by the arrangement of at least a plurality of first surface areas and a plurality of second surface areas in a surface. Such a code is ideal for displaying binary coded information.
  • the bases of the first surface areas and / or the bases of the second surface areas may be formed in the form of a circle, a circular disk, a rectangle or a square.
  • the opto-electronically readable code is a two-dimensional code, preferably a quick-response (QR) code.
  • the two-dimensional codes also include stacked codes such as Codablock, Code 49 and PDF417, as well as matrix codes such as QR codes, DataMatrix code, MaxiCode and Aztec code, and point codes.
  • QR codes also include enhancements such as the design QR code, micro QR code, secure QR code, and iQR code.
  • the opto-electronically readable code is a one-dimensional code, preferably a bar code.
  • the opto-electronically readable code makes it possible to display legal product information and / or optional information, in particular an Internet address, by means of the code integrated in the surface of the tread. As a result, a compact representation of this information is created, which can be read by means of an optoelectronic reader.
  • the Internet address may refer to a website containing further information, in particular information about the product and / or the manufacturer and / or an installation and / or instructions for use.
  • a running surface of the tread preferably a tread of a tread block of the tread, on the relief.
  • the relief can be arranged wholly or partially in the region of the tread.
  • tread block may be bounded by one or two circumferential grooves and / or by one or more transverse grooves.
  • the tread can also have no tread grooves or tread blocks.
  • the region of the surface on which the relief is arranged is formed integrally. If the relief arranged in whole or in part on the tread is interrupted by a tread groove and / or a sipe, then it is expedient for the code to have sufficient redundancy for error correction.
  • an opto-electronically readable code arranged on the running surface is particularly easy to read.
  • the relief is arranged completely or partially axially within the belt edges.
  • the relief is arranged wholly or partially axially outside the belt edges.
  • the abrasion during driving is particularly low, so that the readability of the opto-electronically readable code over a particularly long service life is possible.
  • the tread has a surface area lowered in comparison to the tread, preferably a surface area of a tread groove, and if the relief is arranged wholly or partly within the lowered surface area.
  • an arrangement of the relief in the groove base may be advantageous. If the tread has a tread groove with a groove flank, an arrangement of the relief in the region of the groove flank can also be advantageous. Depending on the angle of incidence, the shading of the relief can thus be reduced and thus a good optoelectronic readability can be ensured. Particularly good results can be achieved if the profile groove has a width of at least 8 mm.
  • the opto-electronically readable code occupies a footprint of 0.8 cm 2 to 16 cm 2 on the surface of the tread.
  • a good dissolvability of the first surface areas and the second surface areas by an optoelectronic reader is given when the first surface areas and / or the second surface areas each have a footprint of 0, 1 mm 2 to 2.25 mm 2 on the surface of the tread.
  • the base surfaces of the first surface areas and / or the second surface areas in the form and area are the same.
  • the first surface regions and the second surface regions differ from each other at least in their mean depth.
  • the arithmetic mean is used to determine the mean depth.
  • the first surface regions and / or the second surface regions each have one or more elements.
  • An element is in each case an elevation or a depression.
  • the elements of a surface area are arranged in the form of a structure or a texture.
  • structure includes the regular arrangement of elements such as regular hatching, i. straight and parallel to each other arranged webs, such as regular grid of elements or lattice structures of intersecting webs.
  • texture includes an irregular but largely homogeneous appearing distribution of elements, in particular a distribution of height and / or arrangement of the elements according to a statistical distribution or noise.
  • Expedient for purposefully influencing the reflection properties of the surface areas are elements whose shape is based on a web and / or a cylinder and / or a pyramid and / or a cone and / or a truncated pyramid and / or a truncated cone.
  • the preferred direction of the reflection is influenced in a targeted manner by the alignment of the longitudinal extent of webs.
  • Cylindrical, pyramidal or conical elements are ideal for increasing the degree of absorption by repeated reflection of the light.
  • the element tips of two adjacent elements of a surface area have a spacing of 0.01 mm to 0.8 mm, particularly preferably a spacing of 0.06 mm to 0.3 mm. Such a distance is ideal for manipulating the reflection properties of light without the individual element sticking out for a viewer on the product surface.
  • an element has a height difference of 0.08 mm to 0.5 mm, particularly preferably a height difference of 0.15 mm to 0.3 mm.
  • all elements of a surface area have such a height difference on.
  • the height difference of an element is measured as the difference between the height of the element ground and the element tip.
  • the relief depth is 0.08 mm to 0.5 mm, preferably 0.15 mm to 0.3 mm. At an even lower relief depth than 0.08 mm, the optoelectronic readability is severely limited.
  • first surface areas or the second surface areas in their depth profile correspond to the depth profile of a surface of the tread different from the relief. Additional processing or deformation of the surface and / or a tool for processing or deformation of the surface is thus not necessary for the respective surface areas.
  • first surface areas with second surface areas having in each case at least one element provides a particularly well opto-electronically readable code.
  • the base of the relief is increased relative to the surrounding tread surface. This allows a better illumination of the relief, whereby a better electro-optical readability is achievable.
  • the base of the relief is lowered relative to the surrounding tread surface. This protects the relief, e.g. Achievable against abrasion.
  • the invention is suitable for one-piece treads as well as for multipart treads.
  • the invention is advantageous both for solid tires for vehicles and for pneumatic vehicle tires.
  • the tire is a pneumatic vehicle tire. This results in particularly great advantages in the durability by the arrangement of the Opto-electronically readable codes on the tread.
  • Particularly preferred is a pneumatic vehicle tire for a passenger car.
  • the invention also includes a first method and a second method for producing a vehicle tire according to the invention comprising a relief with a relief depth of at most 0.5 mm representing an opto-electronically readable code on its tread according to one or more of the cited embodiments.
  • the vehicle tire is thus used in a mold and the relief is formed in the manufacture of the vehicle tire by a correspondingly shaped mold surface of the mold shaping in the component surface.
  • the durability of the tire is only slightly influenced by the local variation of the material thickness of the tread by the relief.
  • the durability of a tire is largely robust against a production-related slight variation in the relief depth or depth profiles of the surface areas. This simplifies production and reduces rejects.
  • the molding tool may be a roller which impresses the relief in a not yet hardened surface.
  • the production process may also be a molding process in which the raw material or the precursor in a mold is given and assumes a product shape determined by this mold. Molding processes, injection molding processes or vulcanization processes by means of a vulcanization mold may be mentioned as shaping processes.
  • the relief is introduced into the mold as a negative mold and is embossed directly into the product surface in the shaping production step. It is not a complex additional step for applying the relief, for example by applying an additional layer of material and / or ink on each product necessary. As a result, a vehicle tire having on its tread an opto-electronically readable code represented by a relief can be produced more cheaply and in a simple manner.
  • the mold is provided with a recess into which one of the recess complementary formed exchange punch is interchangeable, wherein the exchange punch has a molding surface through which the relief on the tread surface is transferable.
  • the forming surface of the exchange punch is preferably made of metal, e.g. Steel, or plastic, e.g. Silicone, or coated with such a material. With such a change punch very fine structures can be embossed into the tread surface.
  • the relief is in this case generated by material removal, preferably by removal of material by means of engraving, particularly preferably by material removal by means of laser engraving, of material from the tread surface of the vulcanized vehicle tire.
  • material removal preferably by removal of material by means of engraving, particularly preferably by material removal by means of laser engraving, of material from the tread surface of the vulcanized vehicle tire.
  • FIG. 1 shows a radial cross section through a pneumatic vehicle tire for a passenger car.
  • the invention is also applicable to other pneumatic vehicle tires or solid tires.
  • the essential components of which the illustrated pneumatic vehicle tire are composed are a largely air-impermeable inner layer 1, a carcass 2 having at least one reinforcement layer, which extends in a conventional manner from the zenith region of the pneumatic vehicle tire over the side walls 3 into the bead regions 4 and is stronger there by wrapping Wulstkerne 5 is anchored.
  • the vehicle tire has an outer surface 10, which has an opto-electronically readable code, which is formed by a relief 11.
  • the relief 11 is shown only schematically.
  • the outer surface 10 having the relief 11 is a surface of the tread 6.
  • the relief 11 has a matrix arrangement of a multiplicity of first surface regions 12 having a depth profile and a plurality of second surface regions 13 having a depth profile, the first surface regions 12 differing from the second surface regions 13 in their depth profile such that they are are designed opto-electronically distinguishable.
  • the relief 11 has a relief depth 14 of a maximum of 0.5 mm.
  • the relief depth 14 may be 0.08 mm to 0.5 mm, preferably 0.15 mm to 0.3 mm.
  • the FIG. 1 clearly shows that the tread 6 is made solid following the relief 11. It can be a new tire.
  • the relief 11 is an integral part of the tread surface. It may be formed from the same material as the surrounding the relief 11 running stiffeners 6.
  • the opto-electronically readable code formed by the relief 11 may be a two-dimensional code, preferably a QR code, or a one-dimensional code, preferably a bar code.
  • the opto-electronically readable code is arranged wholly or partially in the region of a running surface 24 of the tread 6.
  • the tread 24 comes wholly or partially in contact with the road during operation of the tire.
  • the opto-electronically readable code is arranged axially within the belt edges 9.
  • the illustrated tire has tread grooves 20. It can be circumferential grooves.
  • the opto-electronically readable code can also be arranged entirely or partially axially outside the belt edges 9. A suitable position of an optoelectrically readable code arranged in this way is indicated by the reference numeral 24.
  • the relief 11 is a matrix arrangement of a plurality of first surface regions 12 comprising a depth profile and a plurality of second surface regions 13 having a depth profile.
  • Various examples of a section through the tread 6 having the relief 11 along the line AA are shown in FIG FIG. 3 to FIG. 5 shown.
  • the first surface areas 12 and the second surface areas 13 are similar in shape and area of their base. They have a square base with edge length 17 of 0.33 mm to 1.5 mm. Thus, they have a footprint of 0.1 mm 2 to 2.25 mm 2 .
  • the relief 11 usually has a footprint of 0.8 cm 2 to 16 cm 2 .
  • the FIGS. 3 to 5 each show an example of a cross section through a tread 6 comprising the relief 11.
  • the cross section can along the in the FIG. 2 run line AA shown.
  • the relief 11 each has a relief depth 14 of a maximum of 0.5 mm.
  • the relief depth 14 is the maximum height difference of the relief 11, measured perpendicular to the base of the relief.
  • the tread 6 is solid.
  • the depth profile of the first surface area 12 corresponds to the depth profile of a surface 16 of the tread 6 other than the relief.
  • the depth profile of the two surface area 13 is lowered relative to the depth profile of the first surface area 12, respectively Depth profile of the first surface area 12.
  • the arithmetic mean is used to determine the mean depth.
  • the first surface regions 12 differ from the second surface regions 13 in their depth profile in each case in such a way that they are made opto-electronically distinguishable.
  • the entire base area of the second surface area 13 is lowered compared to the first surface area 12.
  • the FIG. 4 rejects the second Surface area 13 exactly one element 15 on.
  • the element 15 is a depression.
  • the second surface area 13 has a plurality of elements 15.
  • the elements 15 are depressions. They may have a pyramidal shape with a square base or a conical shape or be arranged parallel to each other grooves.
  • the elements 15 may be arranged as a structure. For simplicity, only a small number of elements 15 is shown.
  • FIG. 6 to FIG. 8 shows an example of the arrangement of such formed by a relief 11 opto-electronically readable code on the surface of the tread 6.
  • the running stiffeners 6, the running stiffeners of a pneumatic vehicle tire according to FIG. 1 his.
  • the first surface regions 12 and the second surface regions 13 may also be different, eg as in one of FIGS. 3 to 4 be designed.
  • the FIG. 6 shows a plan view of a tread 6 having tread grooves 20.
  • the tread grooves 20 define a profile block 21.
  • the relief 11 is wholly or partially disposed on the tread 24 of the tread block 21. The relief 11 may be lowered relative to the surrounding tread surface.
  • FIG. 7 shows a cross section through a tread 6 having a tread groove 20 as a lowered surface area with a groove bottom 22.
  • the relief 11 is wholly or partially disposed in the region of the groove bottom 22.
  • the base of the relief 11 is increased relative to the surrounding surface of the groove bottom 22 by less than the relief depth 14.
  • the width 19 of the groove may be at least 8 mm. For simplicity, only a few surface areas 12, 13 are shown.
  • FIG. 8 shows a cross section through a tread 6 having a tread groove 20 as a lowered surface area with a groove flank 23.
  • the relief 11 is wholly or partially disposed in the region of the groove flank 23.
  • the width 19 of the groove may be at least 8 mm. For simplicity, only a few surface areas 12, 13 are shown.
  • FIGS. 1 to 8 shown pneumatic tires or treads having an opto-electronically readable and formed as a relief 11 code on the tread can be made according to the first manufacturing process shaping or according to the second manufacturing method by material removal.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)
EP18196168.1A 2017-12-08 2018-09-24 Pneumatiques de véhicule comportant un code lisible de manière optoélectronique Active EP3495166B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017222283.2A DE102017222283A1 (de) 2017-12-08 2017-12-08 Fahrzeugluftreifen aufweisend einen optoelektronisch lesbaren Code

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EP3495166A1 true EP3495166A1 (fr) 2019-06-12
EP3495166B1 EP3495166B1 (fr) 2023-08-09

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
EP4067055A1 (fr) * 2021-03-30 2022-10-05 Continental Reifen Deutschland GmbH Procédé de vérification des codes gravés sur les surfaces des parties de pneus
WO2024083287A1 (fr) * 2022-10-18 2024-04-25 Continental Reifen Deutschland Gmbh Pneumatique de véhicule, méthode de production d'un pneumatique de véhicule et moule de vulcanisation

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WO2005058588A1 (fr) * 2003-12-12 2005-06-30 Pirelli Pneumatici S.P.A. Procede de fabrication d'un pneu comportant une etape de marquage d'un element structurel dudit pneu
WO2015058872A1 (fr) 2013-10-24 2015-04-30 Continental Reifen Deutschland Gmbh Produit comportant un code lisible optoélectroniquement
EP2921322A2 (fr) * 2014-03-19 2015-09-23 MAN Truck & Bus AG Pièce d'usure dotée d'un indicateur d'usure et système de contrôle d'usure
EP3135424A1 (fr) * 2015-08-28 2017-03-01 Continental Reifen Deutschland GmbH Procédé pour l'insertion de structures dans la surface d'un pneu de véhicule

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